Device for repetitively scanning selected small increments of data

Claim 1

A DEVICE FOR REPETITIVELY RECORDING, EXAMINING AND ERASING SELECTED SMALL VARIABLE SIZE INCREMENTS OF DATA, COMPRISING AN AXIS SHAFT, A DRUM MOUNTED ON SAID SHAFT FOR ROTATION THEREWITH, A RECORD/PLAYBACK AND ERASING DEVICES CARRIED IN SAID DRUM FOR RECEIVING INTELLIGENCE FROM A MAGNETICALLY IMPRINTED TAPE, MOTOR MEANS FOR ROTATING SAID SHAFT, A SUPPLY SPINDLE FOR SUPPLYING SAID TAPE, A TAKEUP SPINDLE, MOTOR MEANS FOR DRIVING SAID TAKEUP SPINDLE, MANUAL MEANS FOR DRIVING SAID TAKEUP SPINDLE, LATCH MEANS OPERABLE TO HOLD SAID DRUM AND SHAFT AGAINST ROTATION WHEN SAID TAKEUP SPINDLE IS BEING DRIVEN TO MOVE A TAPE PAST SAID RECORD/PLAYBACK DEVICE, TAPE GUIDE POSTS SO LOCATED ADJACENT SAID DRUM AS TO MAINTAIN A MAXIMUM OF TAPE LENGTH AGAINST SAID DRUM WHEREBY A TAPE MAY BE PLAYED BACK IN ITS ENTIRETY AND ALSO SELECTED SEGMENTS OF TAPE OF A LENGTH APPROXIMATELY TWO THIRDS OF THE CIRCUMFERENCE OF THE DRUM MAY BE REPETITIVELY EXAMINED, A PRESSURE DEVICE FOR PRESSING SAID TAPE RESILIENTLY AGAINST SAID RECORD/PLAYBACK HEAD, SAID PRESSURE DEVICE COMPRISING A PAIR OF PRESSURE ELEMENTS, A PRESSURE AREA ON EACH OF SAID ELEMENTS INDIVIDUALLY SPRING LOADED TO RESILENTLY FORCE SAID TAPE AGAINST SAID RECORD-PLAYBACK HEAD AT TWO SPACED AREAS AND MEANS FOR VARYING THE DISTANCE BETWEEN SAID ELEMENTS FOR VARYING THE LENGTH OF THE SEGMENT UNDER EXAMINATION.

Claim 2

A DEVICE FOR REPETITIVELY RECORDING, EXAMINING AND ERASING SELECTED SMALL VARIABLE SIZE INCREMENTS OF DATA, COMPRISING AN AXIS SHAFT, A DRUM MOUNTED ON SAID SHAFT FOR ROTATION THEREWITH, A RECORD/PLAYBACK AND ERASING DEVICES CARRIED IN SAID DRUM FOR RECEIVING INTELLIGENCE FROM A MAGNETICALLY IMPRINTED TAPE, MOTOR MEANS FOR ROTATING SAID SHAFT, A SUPPLY SPINDLE FOR SUPPLYING SAID TAPE, A TAKEUP SPINDLE, MOTOR MEANS FOR DRIVING SAID TAKEUP SPINDLE, MANUAL MEANS FOR DRIVING SAID TAKEUP SPINDLE, LATCH MEANS OPERABLE TO HOLD SAID DRUM AND SHAFT AGAINST ROTATION WHEN SAID TAKEUP SPINDLE IS BEING DRIVEN TO MOVE A TAPE PAST SAID RECORD/PLAYBACK DEVICE, TAPE GUIDE POSTS SO LOCATED ADJACENT SAID DRUM AS TO MAINTAIN A MAXIMUM OF TAPE LENGTH AGAINST SAID DRUM WHEREBY A TAPE MAY BE PLAYED BACK IN ITS ENTIRETY AND ALSO SELECTED SEGMENTS OF TAPE OF A LENGTH APPROXIMATELY TWO THIRDS OF THE CIRCUMFERENCE OF THE DRUM MAY BE REPETITIVELY EXAMINED, A PRESSURE DEVICE FOR PRESSING SAID TAPE RESILIENTLY AGAINST SAID RECORD/PLAYBACK HEAD, SAID PRESSURE DEVICE COMPRISING A PAIR OF PRESSURE ELEMENTS, A PRESSURE AREA ON EACH OF SAID ELEMENTS INDIVIDUALLY SPRING LOADED TO RESILENTLY FORCE SAID TAPE AGAINST SAID RECORD-PLAYBACK HEAD AT TWO SPACED AREAS AND MEANS FOR VARYING THE DISTANCE BETWEEN SAID ELEMENTS FOR VARYING THE LENGTH OF THE SEGMENT UNDER EXAMINATION.